Lexus ES: System Diagram
SYSTEM DIAGRAM

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CAUTION / NOTICE / HINT HINT:
*: Use the Techstream
Use the following procedure to troubleshoot the hybrid control system.
PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
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UTILITY ALL READINESS HINT:
With "All Readiness", you can check whether or not the DTC judgment has been completed by using the Techstream.
You should check "All Readiness" after simulating malfu
PROBLEM SYMPTOMS TABLE Hybrid Control System Symptom Suspected Area Link Cannot enter EV drive mode CAN Communication System Pattern Select Switch EV Mode Circuit EV mod
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REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. REMOVE OUTER MIRROR (a) Apply protective tape to the areas shown in the illustration. Protective Tape Move in this Direction (b)
DESCRIPTION The headlight ECU sub-assembly operates the low beam fan to cool the headlight LED unit in order to prevent the headlight LED unit from overheating. Illuminates the low beam headlights and continuously operates the low beam fan. The headlight ECU sub-assembly monitors the pulse signals f
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